add authentication to tifn app
migrate auth module from molgenis_apps-legacy repo
Merge branch 'master' of https://github.com/molgenis/molgenis into feature/auth
Merge pull request #18 from dennishendriksen/feature/auth

Migrate auth module + use in tifn app
Merge pull request #20 from ChaoPang/master

Polished the catalogueTree plugin
fixed a tiny bug where the retrieved nodes after searching could cause an error when being inserted in the tree